Malicious PDF — malware analysis report

Static analysis result for SHA-256 362051f643ce070c…

MALICIOUS

PDF

35.2 KB Authoring application: Adobe PDF Library 9.0
MD5: 14bb818b73d0c61ee1e8f5b97097a1c0 SHA-1: 0a35b9860e050061f8048529787e65e48111f00b SHA-256: 362051f643ce070c37a079d8aa5c165aa67cd6b98810879fd3baa0898ccbb3e9
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm of external PDF files, disguised as a hospital floor plan, to lure victims into downloading malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with phishing and SEO-based distribution tactics. No scripts were extracted, limiting the analysis of specific execution behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://adammatheny.com/uploads/1/3/0/6/130621734/geralufo.pdf
    • http://merryheartmother.com/uploads/1/3/0/6/130621547/muziwaxeka.pdf
    • http://www.mazaalaifriends.com/uploads/1/3/0/8/130874409/4199352.pdf
    • http://www.primospizzaoakparkmi.com/uploads/1/3/0/3/130323455/7ddd748cf.pdf
    • http://server.isorx.com/uploads/1/3/0/2/130291531/ea4ee15a4e.pdf
    • http://exceleratesolutionsllc.com/uploads/1/3/0/5/130547340/jixanuxumivorew-bozage.pdf
    • http://action-capital.com/uploads/1/3/0/7/130740320/tililefijaja.pdf
    • http://bakergl.com/uploads/1/3/0/6/130621608/5191630.pdf
    • http://missjordansclassroom.com/uploads/1/3/0/2/130289019/1276361.pdf
    • http://northhobby.us/uploads/1/3/0/2/130272496/numuseku.pdf
    • http://mx20.carmichaelnl.com/uploads/1/3/0/6/130620557/130620557.html#southmead+hospital+brunel+building+floor+plan

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003375.bin
7d389a550bcc749f53680d2b3e04bd8f1bc79ee581192bec5733c0b8feb46b94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3375 7912 bytes

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